Finding the Fourth Proportional to 21,608,435.84, 29,813,167.66 and 12,440,842.88
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Solution
The fourth proportional to 21,608,435.84, 29,813,167.66 and 12,440,842.88 is: 17,164,635.95
Step by Step Solution
- Step 1: Write the proportion equation
21,608,435.84 : 29,813,167.66 = 12,440,842.88 : x - Step 2: Convert to fraction form
21,608,435.84/29,813,167.66 = 12,440,842.88/x - Step 3: Cross multiply
21,608,435.84x = 29,813,167.66 × 12,440,842.88 - Step 4: Simplify right side
21,608,435.84x = 370,900,934,613,157.31 - Step 5: Solve for x
x = 370,900,934,613,157.31/21,608,435.84 - Step 6: Final answer
x = 17,164,635.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.